Pipe exercise device



FIG. 1 shows a perspective view of a pipe exercise device;

FIG. 2 shows a right side view of the pipe exercise device;

FIG. 3 shows a left side view of the pipe exercise device;

FIG. 4 shows a front view of the pipe exercise device;

FIG. 5 shows a rear view of the pipe exercise device;

FIG. 6 shows a top plan view of the pipe exercise device; and,

FIG. 7 shows a bottom plan view of the pipe exercise device.

The broken lines shown in the Figures show portions of the pipe exercise device which form no part of the claimed design. 

CLAIM The ornamental design for a pipe exercise device, as shown and described. 